About this Add-on

Vimperator is a free browser add-on for Firefox, which makes it look and behave like the Vim text editor. It has similar key bindings and you could call it a modal web browser, as key bindings differ according to which mode you are in. For example, it has a special Hint mode, where you can follow links easily with the keyboard only. Also most functionality is available as commands, typing :back will go back within the current page history, just like hitting the back button in the toolbar.

But Vimperator is more than just a simple command interface to Firefox — it is a complete development environment as well. If you are a web developer, you can enjoy an interactive JavaScript shell — even with completion support. Or if you want to extend Vimperator, you can easily do that by just dropping a JavaScript file in its plugin directory.

Vimperator was initially written by Martin Stubenschrott but has found many other contributors in the meanwhile.